In Reply to: RE: I don't direct couple because I use filament bias. posted by shane. on August 7, 2014 at 19:08:51:
Hi Shane,
From my listening experiments, surprisingly, a two-stage DC amp sounds better with one supply, not two, and not two "stacked".
This single supply result is the opposite of all other amps I have built and listened to, where separate ( low DCR ) B+ supplies always sounded best.
The UBT-1 trannie is likely wound with 1,500 VDC insulated wire.
Jeff Medwin
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Follow Ups
- RE: I don't direct couple because I use filament bias. - drlowmu 09:35:29 08/09/14 (4)
- RE: I don't direct couple because I use filament bias. - shane. 17:27:19 08/09/14 (3)
- RE: I don't direct couple because I use filament bias. - drlowmu 11:58:32 09/09/14 (2)
- RE: I don't direct couple because I use filament bias. - shane. 15:24:07 09/09/14 (1)
- RE: I don't direct couple because I use filament bias. - horn kid 08:54:52 11/02/14 (0)